Before going on vacation, self-involved psychiatrist Dr. Leo Marvin has the misfortune of taking on a new patient: Bob Wiley. An exemplar of neediness and a compendium of phobias, Bob follows Marvin to his family's country house. Dr. Marvin tries to get him to leave; the trouble is, everyone loves Bob. As his oblivious patient makes himself at home, Dr. Marvin loses his professional composure and, before long, may be ready for the loony bin himself.
Bill Murray
as Bob Wiley
Richard Dreyfuss
as Dr. Leo Marvin
Julie Hagerty
as Fay Marvin
Charlie Korsmo
as Sigmund "Siggy" Marvin
Kathryn Erbe
as Anna Marvin
Tom Aldredge
as Mr. Guttman
Susan Willis
as Mrs. Guttman
Roger Bowen
as Phil
Fran Brill
as Lily Marvin
Brian Reddy
as Carswell Fensterwald, M.D.
Doris Belack
as Dr. Catherine Tomsky
Melinda Mullins
as Marie Grady
